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M 0. STILES & T. C. LEWIS. MACHINE FOR MAKING WINDOW BLINDS.

Patented Jam 24, 1854.

UNITED STATES PATENT OFFICE. v

MOSES O. STILES AND TRISTRAM S. LEWVIS, OI" HOLLIS, "MAINE.

MAGI-IINE FOR MAKING WINDOW-BLINDS. I

Specification of Letters Patent No. 10,462, dated January 24, 1854;

To all whom it may concern:

Be it known that we, MosEs C. STILES and TRISTRAM S. LEWIS, of Hollis, in the county of York and State of Maine, have invented a new and useful Machinefor Making Window-Blinds; and we hereby declare the following to be a full and exact description thereof, reference being had to the drawings herewith presented, which drawings constitute a part of said description.

This machine consists of the following essential parts, viz., first the frame and cutter by which the stile is grooved or mortised; and secondly the gouge by which the slats are cut to their exact length and rounded or formed so as to exactly fit the mortise by one movement of the foot on a treadle. See the drawing.

Figure 1 is an isometrical view of the whole table and frame (T, T, T, T). (F F,) is the sliding frame which supports the arbor (A) on which is fixed the cutter (C) and its pulley It also has another arbor (B) with pulleys (D and E) to drive the cutter. This frame is fitted in grooves in the two posts (G and G,) so' as to slide freely up and down. It is lifted and supported by the spring (8,) seen lying across the bottom girder of the frame. This frame is depressed by the treadle or lever (L) which is connected to the slide-frame by the rod (R The lever projects a little beyond the frame on both sides so that the operator may stand on either side. In order to give the mortise the proper bevel we use a fence or rule placed diagonally on the table at a proper distance from the cutter in order that when a stile is pressed against the rule (K) the cutter stands over the center of the stile; this rule should be spaced ofl in inches and quarters or into proper distances for the mortises and should be a little longer than the stile.

Now to use this machine we first put the cutter in motion by the belt. Then lay the stile against the rule. Bring the end of the stile exactly even with the first mark next to the cutter. Then press down the treadle and a mortise is instantly made in its proper position. Then raise the foot so that the cutter will rise clear of the stile, move the stile along even with the second mark on the rule, and depress the treadle again. Repeat the operation until the stile is mortised to its proper length. 'Thus it will be perceived that all the mortises may be made complete in this way in less time than they could be marked out in the common way and with perfect accuracy, for to set outa diagonal mortise requires four marks; but to cut the mortise in this machine only requires one movement of the hand and one'of the foot on the treadle. It may be observed that there is a small block or stopper (I) placed behind the cutter and secured to the.

cutter frame, the lower end' of which strikes down upon the top of the stile and stops the cutter from descending lower than to give the mortise a proper depth.

The cutter is constructed in a particular manner. It may be seen in Fig. 3 and Fig. 4. The two teeth (Y, and Y,)' are knifeedged at the points to cut down the sides of the mortise and the tooth (Z) is made with chisel point to cut out the wood between them. The former should be a little longer than the latter. I

In Fig. 1 will be seen a projection or I bench over which hangs the gouge (J) carried by a short arm (H) which is'secured to the frame (F) and strikes down upon the bench (W). In using the gouge we fix a gage block or stop on the bench in such position as to stop the slat at the right distance from the gouge so as'to cut the slatto the exact length required at one stroke.

Thus the slat is brought to its length and rounded without measuring, then turning it end for end and at thenext motion of the treadle and gouge. around the other end and it is finished; thus by two motions. of the Y foot a slat .is cut to its length. and rounded at both ends, completely fitting the .mor-' 'lVhat we do claim and desire to secure by Letters Patent is y The combination of the cutter C and chisel J worked simultaneously by the foot of the operator, or by other power, in the manner and for the purposes setforth.

MOSES C. STILES. TRISTRAM S. LEWIS.

Witnesses:

STEPHEN PQLANE, Jorm B. A. EASTMAN. 

